Chris Sherman and I will be talking with Foursquare’s director of business development Tristan Walker (pictured to the right), about how the service has been growing and reshaping the way both companies and consumers are interacting with each other, all tied to location.

Danny Sullivan’s “Searchquakes” Keynote

I’ll be doing a keynote talk myself on March 9, looking at the state of search and search marketing over the past year and in the coming ones. We’ve had a number of searchquakes that have hit recently: